| ZIP Codes: | 5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All] |
| Area Codes: | 843 / 854 |
| Timezone: | Eastern (GMT -05:00) |
| Local Time: | 2:13:39 PM |
| Population: | 27,793 [See All] |
| FIPS: | 45053 |
| CBSA: | Hilton Head Island-Bluffton-Port Royal, SC |
| Land Area: | 578 sq mi |
| Water Area: | 12 sq mi |
| Coordinates: | 32.4799, -81.0483 |
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27,793 residents live across 5 ZIPs covering 578 sq mi, served by 5 distinct USPS-recognized cities.
Population moved from 23,824 to 27,793 from 2014 to 2024 — a +16.7% change. 4 ZIPs gained residents, 1 lost.
The county's wealthiest ZIP 29934 (Pineland, $88,397 median) and poorest ZIP 29936 (Ridgeland, $48,986) are 12.7 miles apart — a 1.8× income gap across local geography.
Median home values vary 5.1× across this county — from $84,300 in 29943 (Tillman) to $428,700 in 29927 (Hardeeville).
Density varies 11× across the county — from 6 people/sq mi in 29943 (Tillman) to 64 in 29936 (Ridgeland).
Educational attainment ranges from 14.3% bachelor's+ in 29934 (Pineland) to 30.7% in 29927 (Hardeeville) — the breadth of educational profiles across the area.
Within South Carolina, this is the #32 most populous of 46 counties and ranks #10 for median household income with the #8 fastest decade growth .
Weighted by population, the typical household earns about $60,587 across the county — reflecting what a typical resident sees, not a simple ZIP average.
22.1% of adults age 25+ hold a bachelor's degree or higher (4,385 of 19,818 reporting).
5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.
A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.